Additions and corrections
## Counting single molecules in sub-nanolitre droplets |

T. D. Rane, C. M. Puleo, K. J. Liu, Y. Zhang, A. P. Lee and T. H. Wang

*Lab Chip*, 2009, DOI: 10.1039/b917503b. *Amendment published 11th November 2009*

Fig. 3 in the article should have appeared as:

In the caption for Fig. 3B: '(Solid line: weighted linear regression, R = 0.989)' should be replaced with '(Linear regression fit parameter R = 0.99, y = 8.17x - 2.94, linear plot not shown)'. In the caption for Fig. 3C: '(Solid line: linear regression, R = 0.928)' should be replaced with '(Solid line: linear regression, R = 0.95; MDE = detection volume cross-section/constriction size)'.

The Royal Society of Chemistry apologises for these errors and any consequent inconvenience to authors and readers.